Multiple security issues have been found in Icedove, Debian's version ofthe Mozilla Thunderbird mail client: Multiple memory safety errors maylead to the execution of arbitrary code or denial of service.

For Debian 7 "Wheezy", these problems have been fixed in version1:45.3.0-1~deb7u1.

We recommend that you upgrade your icedove packages.

Further information about Debian LTS security advisories, how to applythese updates to your system and frequently asked questions can befound at: https://wiki.debian.org/LTS

Active Support in Ruby on Rails 4.1.x before 4.1.14.1, 4.2.x before4.2.5.1, and 5.x before 5.0.0.beta1.1 supports the use of instance-levelwriters for class accessors, which allows remote attackers to bypassintended validation steps via crafted parameters.

For Debian 7 "Wheezy", these problems have been fixed in version3.2_3.2.6-6+deb7u3.

We recommend that you upgrade your ruby-activesupport-3.2 packages.

Further information about Debian LTS security advisories, how to applythese updates to your system and frequently asked questions can befound at: https://wiki.debian.org/LTS